Question
Short Answer 6. Use Pascal's triangle to expand (3x-2)^6
Solution
3.5
(252 Votes)
Ian
Veteran ยท Tutor for 12 years
Answer
###
Explanation
## Step 1: Identify the Coefficients Using Pascal's Triangle### For the expansion of
, use row
of Pascal's Triangle. Here,
. The coefficients are from row 6:
.## Step 2: Apply the Binomial Expansion Formula### Use the formula
. Substitute
,
, and
.## Step 3: Calculate Each Term### Compute each term using the coefficients and powers of
and
: - First term:
- Second term:
- Third term:
- Fourth term:
- Fifth term:
- Sixth term:
- Seventh term:
## Step 4: Combine All Terms### Sum all the terms to get the expanded form: